Mark, File descriptions: sp45lT3.avi ~ The movie of a single fish in the 45 degree louver. I believe that the title of the slide is 'Splittail Film 45 degree louver, high flow'. T3aniExb.avi ~ This is the vector plot of the single splittail. This slide immediately follows the movie 'sp45lT3.avi'. Title of slide 'vector plot of the preceeding film' school.avi ~ This is the final animation of the wiper school. Slide title: 'Vector plot of wiper school'. This is for the last slide. The powerpoint presentation will have the image of the film sequence, but will most likely not be able to play it (it may not know where to look). You may have to link these files yourself. I suggest installing this folder directly onto the laptop that you will be using instead of burning it to a disk. I don't know if you'll have the time to do this, but in case you have a 'driver' issue here is a link that tells you how to correct it. http://support.microsoft.com/default.aspx?scid=KB;en-us;q212409 It shouldn't take much time at all. The files are microsoft friendly so they should work. However, we both had problems in Sacramento so that probably doesn't mean much. ~Bertrand